Fault-block mountains are formed by normal faults. These faults occur when the Earth's crust is stretched, causing it to break and move downward. The blocks of rock that are left uplifted form mountains.

Some examples of fault-block mountains include:

* Sierra Nevada Mountains (California, USA): A classic example, formed by the eastward tilting of a massive block of granite.

* Wasatch Range (Utah, USA): A steep, prominent range on the eastern side of the Great Basin.

* Teton Range (Wyoming, USA): Known for its dramatic peaks and the Yellowstone National Park.

* Harz Mountains (Germany): Located in central Germany, they are a prominent feature of the landscape.

* Vosges Mountains (France): A range in eastern France, bordering the Rhine Valley.

It's important to note that the specific mountains formed by fault-blocking can vary depending on the geological context and the specific fault system involved.